Direct-current charging pile control guide circuit based on linear optocoupler

The invention discloses a direct-current charging pile control guide circuit based on a linear optocoupler, wherein the circuit comprises a control guide voltage dividing module, an operational amplifier voltage-to-current module, a linear optocoupler isolation module, an operational amplifier current-to-voltage module, and an MCUADC detection module; the control guide voltage dividing module is connected with the operational amplifier voltage-to-current module, the operational amplifier voltage-to-current module is connected with the linear optocoupler isolation module, the linear optocoupler isolation module is connected with the operational amplifier current-to-voltage module, and the operational amplifier current-to-voltage module is connected with the MCU ADC detection module. Compared to prior art, the circuit has the beneficial effects that linearization is controlled and guided, and sampling and control are isolated; dependability is high, the MCU is isolated from the ground, and the anti-interference